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Related Concept Videos

Anatomy of the Heart01:27

Anatomy of the Heart

125.0K
The human heart is made up of three layers of tissue that are surrounded by the pericardium, a membrane that protects and confines the heart. The outermost layer, closest to the pericardium, is the epicardium. The pericardial cavity separates the pericardium from the epicardium. Beneath the epicardium is the myocardium, the middle layer, and the endocardium, the innermost layer. There are four chambers of the heart: the right atrium, the right ventricle, the left atrium, and the left ventricle.
125.0K
Anatomy of the Heart01:20

Anatomy of the Heart

5.8K
The heart is a hollow, muscular organ approximately the size of a fist, consisting of four chambers. It is enclosed in the pericardium, a fibrous sac with two layers: the visceral and parietal pericardium, separated by a fluid-filled space containing serous fluid to reduce friction.
The heart has three layers: the innermost endocardium, the muscular myocardium, and the outer epicardium, all working together for optimal cardiac function.
Chambers of the Heart
The heart is made up of four...
5.8K
Heart Valves01:16

Heart Valves

16.9K
The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
16.9K
Location and Orientation of the Heart01:13

Location and Orientation of the Heart

15.2K
The human heart, despite its modest size and weight, is an organ of remarkable strength and endurance. Roughly the size of a fist, the heart weighs between 250 and 350 grams and is nestled within the mediastinum, the medial cavity of the thorax. It extends obliquely for about 12 to 14 cm, resting on the superior surface of the diaphragm. The heart is positioned anterior to the vertebral column and posterior to the sternum, with two-thirds of its mass lying to the left of the midsternal line.
15.2K
Overview of the Heart01:07

Overview of the Heart

16.8K
The heart, a muscular organ located in the chest, functions as the body's pump, circulating blood through the vascular system. It has four chambers: two atria on top and two ventricles below. The right atrium receives deoxygenated blood from the body and passes it to the right ventricle, which pumps it to the lungs for oxygenation. The left atrium receives oxygenated blood from the lungs and transfers it to the left ventricle, which pumps it to the rest of the body.
The heart's structure...
16.8K
Chambers of the Heart01:16

Chambers of the Heart

12.3K
The human heart is a complex organ made up of four chambers: the right and left atria and the right and left ventricles. These internal chambers are separated by partitions known as the interatrial and interventricular septa. The exterior of the heart features a groove known as the coronary sulcus that demarcates the atria from the ventricles, while the anterior and posterior interventricular sulci distinguish between the two ventricles.
Deoxygenated blood from the body is received in the right...
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Related Experiment Video

Updated: Apr 19, 2026

Dissection Techniques and Histological Sampling of the Heart in Large Animal Models for Cardiovascular Diseases
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Dissection Techniques and Histological Sampling of the Heart in Large Animal Models for Cardiovascular Diseases

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Exercises in anatomy: the normal heart.

Robert H Anderson1, Anne Sarwark2, Diane E Spicer3

  • 1Institute of Genetic Medicine, Newcastle University, Newcastle-upon-Tyne, UK sejjran@ucl.ac.uk.

Multimedia Manual of Cardiothoracic Surgery : MMCTS
|December 16, 2014
PubMed
Summary

This series of videoclips analyzes normal heart anatomy using a morphological method. It emphasizes describing cardiac structures based on their intrinsic form, aiding clinical understanding and surgical planning.

Keywords:
Arterial trunksAtrial chambersAttitudinally appropriate nomenclatureCardiac surgeryVentricular chambers

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Area of Science:

  • Anatomy
  • Cardiology
  • Medical Education

Background:

  • Traditional heart anatomy descriptions often lack clinical relevance.
  • Current trends emphasize in-situ anatomical descriptions for better understanding.
  • A standardized approach to cardiac anatomy is needed for accurate clinical communication.

Purpose of the Study:

  • To present a comprehensive analysis of normal heart anatomy.
  • To introduce and apply the morphological method for defining cardiac structures.
  • To highlight features of surgical significance within the heart.

Main Methods:

  • Analysis of normal heart anatomy through videoclips.
  • Application of the morphological method for structure definition.
  • Emphasis on attitudinally appropriate anatomical descriptions.

Main Results:

  • Appendages are key to distinguishing atrial chambers.
  • Apical trabecular components differentiate ventricles.
  • Detailed analysis of cardiac valves, conduction tissues, and septal structures is provided.

Conclusions:

  • The morphological method offers a precise way to define cardiac structures.
  • Understanding in-situ anatomy is crucial for clinical practice and surgical interventions.
  • This approach enhances the description of normal cardiac anatomy for educational and clinical purposes.